/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2006-2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Simon Fraser <smfr@smfr.org>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#import "NSDate+Utils.h"

@implementation NSDate(ChimeraDateUtils)

+ (id)dateWithPRTime:(PRTime)microseconds
{
  // assume we have 64-bit math
  return [NSDate dateWithTimeIntervalSince1970:(double)(microseconds / 1000000LL)];
}

@end


@implementation NSCalendarDate(ChimeraCalendarDateUtils)

// XXX this sucks pretty badly, mostly because of cocoa.
// Cocoa does not follow the system prefs for the preferred date format, so
// we hardcode some formats for now. This should be improved.
- (NSString*)relativeDateDescription
{
	int todayDayOfEra = [[NSCalendarDate calendarDate] dayOfCommonEra];
  NSString* result;

	int myDayOfEra = [self dayOfCommonEra];
	if (myDayOfEra == todayDayOfEra)
	{
	  NSString* dayString = NSLocalizedString(@"Today", @"");
		result = [dayString stringByAppendingString:[self descriptionWithCalendarFormat:@" %I:%M %p"]];
	}
	else if (myDayOfEra == (todayDayOfEra - 1))
	{
	  NSString* dayString = NSLocalizedString(@"Yesterday", @"");
		result = [dayString stringByAppendingString:[self descriptionWithCalendarFormat:@" %I:%M %p"]];
	}
	else if (myDayOfEra == (todayDayOfEra + 1))
	{
	  NSString* dayString = NSLocalizedString(@"Tomorrow", @"");
		result = [dayString stringByAppendingString:[self descriptionWithCalendarFormat:@" %I:%M %p"]];
	}
	else if (myDayOfEra >= (todayDayOfEra - 7))
	{
    // up to a week ago, show the time
    result = [self descriptionWithCalendarFormat:@"%a %b %d %Y %I:%M %p" locale:nil];
  }
  else
  {
    // older than a week, just show the date
    result = [self descriptionWithCalendarFormat:@"%b %d %Y %I:%M %p" locale:nil];
  }

  return result;
}

@end
